CITY REPORT CA

Temple City, CA Home Safety: Home Safety 58/100

1 ZIP code · 5 water systems · Updated

ZipCheckup grade for Temple City: C.

A mixed picture - some signals here are worth your attention.

Neither high nor low, the composite grade for Temple City, CA is a C, built from ZIP-level scores.

How Temple City Compares

Temple City58/100
California avg76/100
National avg73/100

Data: EPA SDWIS

1
ZIP Codes
5
Water Systems
0
ZIPs Linked to Systems with Violations
C · 58
Avg Safety Score
Zone 2
County Radon Potential (Moderate)
$923K
Median Home Value
$600
Est. Remediation (0.1% of home value)

Temple City Water: The Quick Version

  • Average of reported 90th-percentile lead results: 0.0019 mg/L.
  • Homes built before 1986: 80% - older plumbing may contain lead solder.
  • Estimated remediation: $600 per household.
  • Health risk index (ZipCheckup composite of CDC data): 10.71.

Water Systems Serving Temple City

Counting every public water system linked to Temple City, CA in federal data gives 5. The list below keeps the 3 largest by reported population served, a figure that covers each system's whole service area rather than the city alone. A household's own supplier is named on its water bill.

Overview

We track home safety data for 1 ZIP code in Temple City, California (population ~35,136), covering 5 community water systems serving approximately 161,629 people region-wide. The EPA snapshots used for this build directly map water systems to 1 of 1 ZIP codes.

The available EPA record reports 0 violations for 1 ZIP code with a reported violation count.

Home Safety Score

Average Home Safety Score for Temple City: C (58/100)

Model 4.0.0 uses four measured components across three equally weighted domains. If a required domain is unavailable, no score is published:

Factor What It Measures
Water Quality EPA violations and compliance history
PFAS MCL Screen UCMR 5 testing against the covered federal MCLs
Radon Risk EPA radon zone classification
Annual AQI EPA AirData county-year median with at least 90 observed days

Water Sources

Temple City water systems draw from: Groundwater, Surface water.

Lead & Copper

  • Average of reported 90th-percentile lead results: 0.0019 mg/L (EPA action level: 0.015 mg/L)
  • 0 of 1 ZIP code with known status exceed the EPA lead action level

Radon Risk

1 of 1 ZIP records with known zones is in EPA Radon Zone 2.

The EPA recommends testing all homes regardless of radon zone. County radon zones cannot replace an in-home radon test.

Areas with No Violations

ZIP Code Safety Score System Population
91780 C Sunny Slope Water Company 25,252

All ZIP Codes in Temple City

Data Sources

Reporting periods vary by source. Missing data is shown as unavailable, not as zero.

CDC Health Data for Temple City

9.1%
Asthma (US: 9.8%)
12.6%
Diabetes (US: 10.4%)
16.2%
Poor Mental Health (US: 14.8%)

Source: CDC PLACES (County-level estimates). County health indicators are shown for context only and are not linked to this area's water records.

Compared to National Average

Asthma 9.1% ↓
Diabetes 12.6% ↑
Mental Health 16.2% ↑

Vertical line = national average. ■ Above national · ■ Below national

How Old Is Temple City's Housing Stock?

1952
Median Build Year
80%
Built Before 1986
69%
Built Before 1970
Galvanized Steel or Copper
Likely Pipe Material

With 80% of homes built before 1986, lead solder in plumbing is a potential concern. Federal law banned lead solder in drinking-water plumbing in 1986, but many older homes retain original plumbing.

Source: U.S. Census Bureau American Community Survey (ACS).

Housing Age Profile

Median construction year in Temple City: 1952, set against the 1986 federal lead limits for new plumbing.

1952
Median Year Built
80%
Pre-1986 (lead solder era; lead paint banned 1978)
69%
Pre-1970 (Lead Pipes Risk)
Pre-1970 (69%) 1970–1986 (11%) Post-1986 (20%)

Over half of homes in Temple City were built before 1986, when federal law began restricting lead solder in drinking-water plumbing. Older plumbing may leach lead into drinking water, especially with corrosive water chemistry.

Source: U.S. Census Bureau ACS B25034.

Temple City: Remediation Cost in Perspective

Compared with typical property prices, the remediation estimate for Temple City is small in percentage terms - at or under one percent.

Median Home Value
$922,900
Est. Remediation
$600
Remediation as % of home value 0.1%

Estimated remediation costs in Temple City can be compared with local home values. The $400–$800 estimated range can be set against the median property value; actual costs vary by home. Home values are 25% above the California average.

Protecting Children from Lead in Temple City

80%
Homes Built Before 1986
0.0019
mg/L average of reported water-system 90th-percentile lead results (the 0.015 action level applies to each system's result, not to this average)

Why children are most at risk: The CDC states that no safe blood lead level in children has been identified. Children under 6 absorb lead more readily than adults, and even low levels can cause developmental delays, learning difficulties, and behavioral problems.

If you have young children or are pregnant, consider testing your home's water - especially if your home was built before 1986.

Sources: EPA Lead and Copper Rule, U.S. Census Bureau ACS, CDC childhood lead poisoning prevention guidelines.

What You Can Do in Temple City

  1. Test your water at home. City-level data shows averages - your tap may differ. Check the certification, price and turnaround time of any water test kit or lab service.
  2. Install a certified water filter. Choose a pitcher or under-sink filter certified to reduce the specific contaminants of concern.
  3. Check your home's plumbing. With 80% of homes built before 1986, lead solder is a real possibility.

Deep Dive Reports

Detailed analysis for Temple City, CA

Frequently Asked Questions

What does the Home Safety Score mean for Temple City, CA?
Temple City has an average Home Safety Score of 58/100 (Grade C) under ZipCheckup model 4.0.0, an area-level model that draws on EPA water compliance records, PFAS screening, EPA radon zones, and annual EPA air quality data; see the methodology page for how inputs and coverage are handled. The available EPA record reports no violations for ZIP codes with reported counts. Check individual ZIP code reports for component details.
Does Temple City water have lead?
The average of the reported 90th-percentile lead results across the ZIP codes of Temple City is 0.0019 mg/L. The EPA action level of 0.015 mg/L applies to each water system's own 90th percentile, not to this average. EPA's health goal for lead is zero. Lead levels can vary by home - testing is recommended especially in older properties.
How does Temple City compare to California average?
Temple City has an average Home Safety Score of 58/100, which is below the California state average of 76/100 for the same model series.
How many water systems serve Temple City?
Our records map 5 water systems to 1 ZIP code in Temple City. The related population figure in our data is approximately 35,136 people; it is not a count of people served citywide.
How much does it cost to fix water issues in Temple City?
Estimated remediation cost per household in Temple City: $600; modeled range $400 to $800. Estimated costs may include filtration, pipe replacement, radon mitigation, or flood protection where applicable.
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How to cite this page

APA ZipCheckup. (2026). Temple City, CA Home Safety: Home Safety 58/100. https://zipcheckup.com/cities/ca/temple-city/
BibTeX 
@misc{zipcheckup-cities-ca-temple-city,
  author = {{ZipCheckup}},
  title  = {{Temple City, CA Home Safety: Home Safety 58/100}},
  year   = {2026},
  url    = {https://zipcheckup.com/cities/ca/temple-city/}
}

Page version: October 2026.

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